Sectional inking roller



June 16, 1925.

H. DE JARNETTE SECTIONAL INKING ROLLER Filed March 12, 192-3 2Sheets-Sheet 1 r M m Z/yhss H. DE JARNETTE SECTIONAL INKING ROLLERFiledMaroh 12, 1923 '2 Sheets-Sheet 2 June 16, 1925.

Patented June 16, 1925.

UNITED STATES HENRY DE 'JARNETTE, 0F DES MOINES, IOWA.

SECTIONAL INKING ROLLER.

Application filed March 12, 1923. Serial No. 624,481.

To all wkomit may concern: I

Be it known that I, HENRY DE J ARNE'I'IE, a citizen of the UnitedStates, and a resident of Des Moines, in the county of Polk and State ofIowa, have invented a certain new. anduseful Sectional Inking Roller, ofwhich the following is a specification.

It is the object of my invention to provide a sectional inking rollerfor printin offset, lithographing and all other presses or makinimpressions or printswith ink,whereb substantial economy in the use ofsuch rol ers maybe effected.

A further object is to provide such sectional inking rollers togetherwith means whereby they may be mounted on a core without weakening thecore.

An additional object is to provide sectional rollers so constructed asto use a minimum of material.

With these and other objects in view, my invention consists in theconstruction, arrangement and combination of the various parts of mysectional inking roller, whereby the objects contemplated are attained,as hereinafter more fully set forth, pointed out in my claim, andillustrated in the accompanying drawings, in which:

Figure 1 shows a plan view of a core having thereon sectional rollersembodying my invention.

Figure 2 shows a similar view with the sectional rollers arranged in adifferent way..

Figure 3 shows a transverse, sectional view through the core and one ofthe sectional rollers thereon.

Figure 4 shows a longitudinal, sectional view taken at right angles tothe view shown in Figure 3.

Figure 5 shows a perspective view illustrating one of the clamps forholding the sectional rollers in place mounted on the core.

Figure 6 shows a detail, sectional View taken on the line 6-.6 of Figure1.

Figure 7 shows an enlarged, plan view of .one of the rollers on thecore.

Figure 8 shows another plan View, showing the core with a quarter lengthand a onehalf length roller thereon.

Figure 9 shows a detail, sectional view through the mold and the meansused for properly supporting and spacing the sec tional roller liningstherein.

Figure 10 shows a detail, sectional view taken on the line l0-l0 ofFigure 9.

Figure 11 shows a perspective view of one of the separator members; and

Figure 12 shows a plan View of several of the sectional rollers as theyare taken from the mold.

In the process of printing, it is well known that ink is distributedfrom a fountain by a of rollers. In the series, metal-faced rollersalternate with cpmposition-faced rollers;

It is well known to pressmen that in comnot inked, bulge or crack onaccount of heating.

Sometimes when it is desired to print two or more colors from the samefountain at one impression, the pressman cuts grooves in the compositionroller, and it sometimes occurs that after the workfor which the cutroller is used is finished, there is no further use for such a roller,and it is obvious that since rollers are expensive, such a. processinvolves the loss of a piece of property of substantial value.

It is-my purpose to provide sectional rollers, whereby the evils abovereferred to may be obviated in a printing plant.

I have therefore provided my sectional rollers, which will now bedescribed.

In the accompanying drawings, I have used the reference numeral 10 toindicate generally the central portion of a core of a compositionroller. In practice, the central portion 10 is usually made of a pieceof steel tulaing, having the spindle 11 welded into its on s.

My improved sectional composition roller comprises a tubular sectionlining 12, having reduced ends 13. v

Each end 13 is provided with a notch 14 and transversely opposite with atongue or projecting lug 15. The notch 14 at one end 13 of the lining 12is arranged in line with the tongue 15 at the other end thereof.

The lining 12 is covered by composition 16 of the kind used on any kindof composition rollers.

I have found by experience that the core 10 must not be grooved orotherwise weakened because it is comparatively thin-walled, and ifgrooved or otherwise weakenedwill sag somewhat and result in improperdistr bution of the ink from roller to roller. TlllS sagging will occureven with a solid core, if the core is grooved throughout a substantialportion of its length. Therefore, in order to secure the sectionalroller in place on the core 10 against the relative rotation therein andagainst longitudinal movement on the core, I have provided the clamps A,which in each instance comprise a spllt annular ring 18, each having inits per1phery a portion cut away at as 19, leaving a projecting shoulderor the like 20 1n which is mounted a screw bolt 21 adapted to pro ectacross the break in the ring and to be screwed into an opening 22, asillustrated for instance in Figure 6.

The screw bolts 21 may be provided with angular heads or. with screwdriver notches or both as may be desired.

Each ring 18 has secured thereto an annular hub 23. The hub 23 issecured to the ring 18 for a portion only of the circumference of thehub, so as to leave no connection between the body of the ring 18 andthe hub 23 for a considerable distance on each side of the break orsplit 24 in the ring.

Each hub 23 is provided with a tongue or projecting lug 25 anddiametrically opposite with a recess 26. The tongues 25 and recesses 26are designed to respectively enter and receive the recesses 14 andtongues 15 on the ends 13 of the lining 12.

It will be understood that the sectional rollers may be made of anydesired length to properly ink the page to be printed.

In Figure 8, I have shown a quarter length sectional roller B and ahalf-length sectional roller 0 mounted on the core 10.

In Figure 1, I have shown one-third length rollers E mounted on the core10 in the ends thereof and have shown the central portion of the corewithout the sectional rollers.

In Figure 2, I have shown three sectional rollers mounted on the core ina way which will not ordinarily be used with their adjacent endsconnected together with the tongues 15 of one roller received in thenotches 14 of the adjacent roller.

Where sectional rollers of the kind herein shown are employed, a numberof advantages are secured.

By using a sectional roller of the proper length for inking the page tobe printed, I do away with the danger of overheating or otherwisespoiling a considerable portion of the length of an ordinary roller.

It is necessary to provide metal linings in order to be able todetachably mount and hold the sectional rollers on the cores. By usingthe linings 12 of the form shown, spaced from the cores 10, except atthe ends of the linings, I make it ossible to use less composition andthus e ect a substantial saving of that material.

The sectional rollers can be placed at any point on the length of thecore and by the use of the tongues and notches in the ends 13 and by theuse of the clamp devices hereinbefore described, thesectional rollerscan be locked on the core wherever desired, without any weakening andconsequent danger of sagging of the core with the roller thereon.

The rollers can be mounted wherever desired, are easy to adjust, andneither they nor the clamps will get out of order, nor mar or weaken thesurface of the core. They do away with the danger of spoiling longrollers by heating or the drying of the ink on the surface of the longrollers. They do away with the necessity for notching or grooving longrollers.

The use of the sectional rollers accomplish another substantial savingin the following respect:

It is well known that after composition rollers have been used for acertain length of time, they have to be sent back to the factory to havethe composition taken off and replaced. With the ordinary rollers, it isnecessary to send the entire cores at a considerable freight expense.Where the sectional rollers are employed only the sec tional linings 12need be returned to the factory for recovering with composition.

Where the composition on a small portion of the ordinary roller isspoiled, then before that part of the roller can be used again, thewhole roller must be recovered and this involves removal of that part ofthe composition, which is still good, and recovering the whole roller.This old method involves the expense of shipping and handling the wholeroller and core. Where one of my sections, for instance of one-fourthlength, deteriorates, only that section, without the core, need to beshipped and recovered.

My sectional rollers can be used with the old or ordinary cores andtheir use therefore does not necessarily involve the expense of buyingnew cores.

My experience has been that by leaving the space between the lining 12and the core 10, the rollers do not heat so quickly as where thecomposition is placed on the core itself, nor where the linings fitsnugly on the core. I find that by making the linings with the reducedends, it is easier to slip the sectional rollers to the proper place onthe core than where the linings fit the core snugly for their entirelength. This is especially true if there should be a slight variationfrom true in the core. These sectional rollers are less expensive to usethan the ordinary rollers, are more durable and are more practicable forthe general line of Work.

Some changes may be made in the construction and arrangement of mysectional rollers, and it is my intention to cover by my claim anymodified forms of structure or use of mechanical equivalents, which maybe reasonably included within their scope.

I claim as my invention:

In a sectional composition roller, a. cylindrical metal core, asectional roller supported thereon comprising a tubular lining havingreduced ends to fit said core, and a composition cover for said lining,clamp devices for securing said lining to said core, said clamp devicesand the reduced ends of the lining having coacting tongues and 20notches.

HENRY DE JARNETTE.

